Title:
エンジンの可変動弁装置
Document Type and Number:
Japanese Patent JP4072676
Kind Code:
B2
Abstract:
A variable operating valve apparatus for an internal combustion engine that provides for improved combustion performance without enlarging the size of the cylinder head in the transverse direction. The variable valve mechanism includes a camshaft axially supported by the cylinder head, three-dimensional cams formed on the camshaft, a rocker shaft actuator able to displace the rocker shaft in the axial direction according to engine operating conditions, and a lift volume setting mechanism that changes the amount of valve lift dependent on the extent of positional change of the rocker shaft in the axial direction. The camshaft is at least axially supported on the intake port side of the cylinder head, a fuel injector (which injects fuel into the intake port) is installed to the part of the intake sidewall at the intake port of the cylinder head, and a concave part is formed into the intake sidewall above the fuel injector extending inward toward the camshaft.
Inventors:
Hiroshi Osawa
Application Number:
JP2002372285A
Publication Date:
April 09, 2008
Filing Date:
December 24, 2002
Export Citation:
Assignee:
SUZUKI KABUSHIKI KAISHA
International Classes:
F02B77/00; F01L13/00; F02F1/24; F02F1/38; F02M69/04
Domestic Patent References:
| JP55090708U | ||||
| JP11287168A | ||||
| JP2000249025A |
Attorney, Agent or Firm:
Yoshimi Saigo